With geomagnetic field model records, several kinds of secular variation of geomagnetic dipole moment and the position of the geomagnetic North Pole during the year 0 ~ 2000 a.
利用地磁场模型资料，计算和分析了公元0 ~ 2000年的地磁场偶极子磁矩和地磁北极位置的长期变化。
2
Letters sent from the North Pole or remote whaling stations are particularly in vogue at the moment.
目前，从北极点和偏远的捕鲸站发出的实寄封尤其抢手。
3
But step outside the meat-locker air-conditioning for a moment, and you might encounter a toothless peasant in a coolie hat carrying handmade baskets of fresh lychees balanced on a bamboo pole.